require('strict')
local p = {}

p.templatepage = function(args, raw_args, inactive_status)
local wikilink = function(link, display)
	if link then
		return display and '[['..link..'|'..display..']]' or '[['..link..']]'
	else
		return display or ''
	end
end
---------------------------
-- Initialise variables ---
---------------------------
local sandbox = '/sandbox'
local cfg = mw.loadData('Module:WikiProject banner/config' .. (sandbox or ''))
local cfg_tp = cfg.template_page -- convenient shortcut for template_page configuration settings
local lang = mw.language.getContentLanguage()
local current_page = mw.title.getCurrentTitle()
local on_sandbox = lang:lc(current_page.subpageText)=='sandbox' -- on sandbox subpage
	or current_page.namespace==2 -- in User namespace
	or current_page.rootText=='WPBannerMeta' -- subpage of Template:WPBannerMeta
local frame = mw.getCurrentFrame()
local parameter_format = function(parameter, value)
	local code = parameter and mw.html.create('code')
		:addClass('tpl-para')
			:css('word-break', 'break-word') --TODO: add to css page
			:wikitext('|' .. parameter .. '=' .. (value or ''))
			:done()
	return tostring(code)
end
local yesno = require('Module:Yesno')
local messageBox = require('Module:Message box').main
local project = args.PROJECT or ''
local banner_name = mw.title.new(args.BANNER_NAME or 'Template:WikiProject ' .. project)
local project_name = args.PROJECT_NAME or 'WikiProject ' .. project
local notices, tracking_cats = {}, {}
local add_tracking = function(tracking, show_on_sandbox)
	local category = tracking.category or cfg_tp.default_tracking -- uses [[Category:WikiProject banners with errors]] by default
	local key = tracking.sort_key or (project~='' and project or '*') -- sort key defaults to name of project
	if not on_sandbox or show_on_sandbox then
		table.insert(tracking_cats, wikilink('Category:' .. category, key))
	end
end
local project_link = args.PROJECT_LINK or 'Wikipedia:WikiProject ' .. project
---------------------------
-- Count notes/taskforces -
---------------------------
local task_forces, notes, taskforce_categories = {}, {}, {}
for arg_name, _ in pairs(raw_args) do
	local tf_match = mw.ustring.match(arg_name,'^tf (%d+)$')
	if tf_match then
		table.insert(task_forces, tf_match)
	end
	local tf, cat = mw.ustring.match(arg_name,'^tf (%d+) cat (%d+)$')
	if tf then
		if not taskforce_categories[tf] then-- initialise table
			taskforce_categories[tf] = {}
		end
		table.insert(taskforce_categories[tf], cat)
	end
	local note_match = mw.ustring.match(arg_name,'^note (%d+)$')
	if note_match then
		table.insert(notes, note_match)
	end
end
table.sort(task_forces, function (x, y) return tonumber(x) < tonumber(y) end)
table.sort(notes, function (x, y) return tonumber(x) < tonumber(y) end)
---------------------------
-- Demonstrative banner ---
---------------------------
args.PROJECT = args.PROJECT or ''
args.class = raw_args.class and not inactive_status and 'C'
args.importance = raw_args.importance and 'High'
args.priority = raw_args.priority and 'High'
args.auto = raw_args.auto and 'inherit'
args.attention = raw_args.attention and 'yes'
args.infobox = raw_args.infobox and 'yes'
args.b1 = raw_args.b1 and 'yes'
args.b2 = raw_args.b2 and 'no'
args.b3 = raw_args.b3 and 'foo'
args.b4 = raw_args.b4 and 'yes'
args.b5 = raw_args.b5 and 'na'
args.b6 = raw_args.b6
args['image-needed'] = raw_args['image-needed'] and 'yes'
args['collaboration-candidate'] = raw_args['collaboration-candidate'] and 'yes'
args['collaboration-current'] = raw_args['collaboration-current'] and 'yes'
args['collaboration-past'] = raw_args['collaboration-past'] and 'yes'
args['a class'] = raw_args['a class'] and 'current'
args['peer review'] = raw_args['peer review'] and 'yes'
args['old peer review'] = raw_args['old peer review'] and 'yes'
for _, tf in ipairs(task_forces) do
	args['tf '..tf] = 'yes'
	if raw_args['tf '..tf..' importance'] then
		args['tf '..tf..' importance'] = 'Top'
	end
end
for _, note in ipairs(notes) do
	local text_arg = args['NOTE_'..note..'_TEXT']
	if text_arg and text_arg~='' then
		args['note '..note] = 'yes'
	end
end
local demo_banner, note_count, tf_count, assessment_link = require('Module:WikiProject banner'  .. (sandbox or ''))._main(args, args, true, banner_name)
if not assessment_link then --temporary code until main module updated
	assessment_link = args.ASSESSMENT_LINK
end
if not assessment_link then
	local project_link = mw.title.new(args.PROJECT_LINK or 'Wikipedia:' .. project_name)
	local fallback = mw.title.new(project_link.prefixedText .. '/Assessment')
	assessment_link = fallback.exists and fallback.prefixedText
elseif assessment_link=='no' then
	assessment_link = nil
end
---------------------------
-- Project status ---------
---------------------------
if inactive_status then
	table.insert(notices, cfg_tp.inactive:format(inactive_status))
end
---------------------------
-- Quality criteria -------
---------------------------
local custom_mask = banner_name:subPageTitle('class')
if args.QUALITY_CRITERIA=='custom' then
	add_tracking(cfg_tp.quality_criteria.custom_tracking)
	if custom_mask.exists and #custom_mask:getContent()>1 then
		table.insert(notices, cfg_tp.quality_criteria.custom:format(
			custom_mask.prefixedText
		))
	else
		table.insert(notices, string.format(
			cfg_tp.quality_criteria.missing,
			parameter_format('QUALITY_CRITERIA'),
			custom_mask.prefixedText
		))
	end
end
---------------------------
-- Custom importance mask -
---------------------------
local custom_mask = banner_name:subPageTitle('importance')
if args.IMPORTANCE_SCALE=='subpage' then
	if custom_mask.exists and #custom_mask:getContent()>1 then
		table.insert(notices, string.format(
			cfg_tp.custom_importance_mask.in_use,
			custom_mask.prefixedText
		))
	else
		table.insert(notices, string.format(
			cfg_tp.custom_importance_mask.missing,
			parameter_format('IMPORTANCE_SCALE'),
			custom_mask.prefixedText
		))
	end
elseif custom_mask.exists and #custom_mask:getContent()>1 then
	table.insert(notices, string.format(
		cfg_tp.custom_importance_mask.unused,
		custom_mask.prefixedText,
		parameter_format('IMPORTANCE_SCALE','subpage')
	))
end
---------------------------
-- Collapsed sections -----
---------------------------
local more_than = function(n)
	return n>=2 and string.format(cfg_tp.more_than.more, tostring(n))
		or n==1 and cfg_tp.more_than.one
		or n==0 and cfg_tp.more_than.zero
end
local tf_threshold = tonumber(args.TF_COLLAPSE) or (args.TF_HEADER and cfg.task_force.lower_threshold) or cfg.task_force.upper_threshold
if tf_count > tf_threshold then
	table.insert(notices, string.format(
		cfg_tp.task_force.collapsing,
		tf_count,
		more_than(tf_threshold),
		parameter_format('TF_COLLAPSE')
	))
end
local note_threshold = tonumber(args.COLLAPSED) or 2
local hook_collapsed
if args.HOOK_COLLAPSED then
	local success, result = pcall(mw.ext.ParserFunctions.expr, args.HOOK_COLLAPSED)
	hook_collapsed = success and tonumber(result) or nil
	if args.HOOK_COLLAPSED=='auto' then
		hook_collapsed = args.HOOK_NOTE and 1 or 0 -- default assumption is that HOOK_NOTE produces max one note
	end
end
if note_count > note_threshold then
	table.insert(notices, string.format(
		cfg_tp.note.collapsing,
		note_count,
		more_than(note_threshold),
		parameter_format('COLLAPSED')
	))
end
if args.HOOK_NOTE then
	if not hook_collapsed then
		table.insert(notices, string.format(
			cfg_tp.note.counter,
			parameter_format('HOOK_NOTE'),
			parameter_format('HOOK_COLLAPSED')
		))
		add_tracking(cfg_tp.note.tracking)
	end
end
---------------------------
-- Assessment link --------
---------------------------
if raw_args.class or raw_args.importance then
	local url = mw.uri.fullUrl(banner_name.prefixedText,{
		action = 'edit',
		summary = cfg_tp.assessment_link.edit_summary
	})
	if args.ASSESSMENT_LINK then
		if not mw.title.new(args.ASSESSMENT_LINK).exists then
			table.insert(notices, string.format(
				cfg_tp.assessment_link.missing,
				wikilink(args.ASSESSMENT_LINK),
				tostring(url),
				parameter_format('ASSESSMENT_LINK')
			))
		end
	end
end
---------------------------
-- Project parameter ------
---------------------------
if args.PROJECT=='' then
	table.insert(notices, cfg_tp.project.text)
	add_tracking(cfg_tp.project.tracking)
end
---------------------------
-- Subst check ------------
---------------------------
if not raw_args.substcheck then
	table.insert(notices, string.format(
		cfg_tp.substcheck.text,
		parameter_format('substcheck')
	))
	add_tracking(cfg_tp.substcheck.tracking)
end
---------------------------
-- Portal link ------------
---------------------------
if args.PORTAL then
	local portal_image = require('Module:Portal')._image(args.PORTAL)
	local portal_link = mw.title.new('Portal:' .. args.PORTAL)
	local explain
	if portal_link and portal_link.exists then
		if portal_image=='Portal-puzzle.svg' then
			explain = string.format(cfg_tp.portal.no_image, cfg_tp.portal.instructions)
		else
			explain = string.format(
				cfg_tp.portal.image_link,
				wikilink(':File:' .. portal_image),
				cfg_tp.portal.instructions
			)
		end
	else
		explain = string.format(cfg_tp.portal.missing, parameter_format('PORTAL'))
		add_tracking(cfg_tp.portal.tracking)
	end
	local text = string.format(
		cfg_tp.portal.text,
		portal_link.prefixedText,
		explain
	)
	table.insert(notices, text)
end
---------------------------
-- Task forces ------------
---------------------------
for _, k in ipairs(task_forces) do
	local name_parameter = 'TF_'..k..'_NAME'
	if raw_args['tf '..k] and not args['TF_'..k..'_NAME'] then
		table.insert(notices, string.format(
			cfg_tp.task_force.text,
			parameter_format('TF_'..k..'_NAME')
		))
		add_tracking(cfg_tp.task_force.tracking)
	end
end
---------------------------
-- Parameter checking -----
---------------------------
if not inactive_status then
	local category = mw.title.new(cfg.unknown_parameters.tracking:format(project_name))
	local text = string.format(
		category.exists and cfg_tp.parameters.tracking or cfg_tp.parameters.create,
		':' .. category.fullText
	)
	table.insert(notices, text)
end
---------------------------
-- Assessment categories --
---------------------------
local importance_name = args.IMPN or (raw_args.priority and 'priority' or cfg.importance.default_name)
local check_assessment_categories = function(project, assessment_cat, quality, importance_scale, prefix, tf_name)
	assessment_cat = assessment_cat or ((project or '') .. ' articles')
	local missing_cats = {}
	local red_cats_in_use = false
	local check_cat = function(cat_name, preload)
		local category = mw.title.new('Category:' .. cat_name)
		if not category.exists then
			local url = mw.uri.fullUrl('Category:' .. cat_name, {
				action = 'edit',
				preload = preload,
				editintro = cfg_tp.check_assessment.editintro,
				preview = 'no',
				summary = cfg_tp.check_assessment.create_summary,
				['preloadparams[1]'] = project,
				['preloadparams[2]'] = mw.ustring.gsub(assessment_cat, ' articles', '')
			})
			local pages_in_category = mw.site.stats.pagesInCategory(cat_name, 'pages')
			if pages_in_category>0 then
				red_cats_in_use = true
			end
			local label = pages_in_category>0 and '<b>create</b>' or 'create'
			local create_link = wikilink(':' .. category.prefixedText) .. ' &ndash; ([' .. tostring(url) .. ' ' .. label .. '])'
			table.insert(missing_cats, create_link)
		end
	end
	if quality then
		check_cat(lang:ucfirst(assessment_cat) .. ' by quality', cfg_tp.check_assessment.meta_preload)
		for _, class in ipairs(cfg_tp.check_assessment.classes) do
			local cat_name = (class=='Unassessed' and 'Unassessed' or class..'-Class') .. ' ' .. assessment_cat
			check_cat(cat_name, cfg_tp.check_assessment.quality_preload)
		end
	end
	if importance_scale and importance_scale~='inline' and importance_scale~='subpage' then
		check_cat(lang:ucfirst(assessment_cat) .. ' by ' .. importance_name, cfg_tp.check_assessment.meta_preload)
		for _, importance in ipairs(cfg_tp.check_assessment.importances) do
			local cat_name = importance .. '-' .. importance_name .. ' ' .. assessment_cat
			check_cat(cat_name, cfg_tp.check_assessment.importance_preload)
		end
	end
	if #missing_cats>0 then
		local intro = string.format(
			cfg_tp.check_assessment.text,
			tf_name or project or '',
			parameter_format((prefix or '') .. cfg_tp.check_assessment.parameter_suffix)
		)
		local list = mw.html.create('ul')
		for _, missing in ipairs(missing_cats) do
			list:tag('li')
				:wikitext(missing)
				:done()
		end
		list:done()
		if red_cats_in_use then
			add_tracking(cfg_tp.check_assessment.tracking)
		end
		return messageBox('ombox', {
			type = 'content',
			image = '[[File:' .. cfg_tp.check_assessment.icon .. '|50px]]',
			text = intro .. tostring(list)
		})
	end
	return ''
end
local missing_cats, warnings = {}, {}
local red_other_cats_in_use = false
local check_other_category = function(cat_name)
	if cat_name and cat_name~='none' then
		local category = mw.title.new('Category:' .. (cat_name or ''))
		if category and not category.exists then
			local pages_in_category = mw.site.stats.pagesInCategory(cat_name, 'pages')
			if pages_in_category>0 then
				red_other_cats_in_use = true
			end
			table.insert(missing_cats, wikilink(':' .. category.prefixedText))
		end
	end
end
table.insert(warnings, check_assessment_categories(
	project,
	args.ASSESSMENT_CAT,
	raw_args.class and args.QUALITY_CRITERIA~='custom',
	(raw_args.importance or raw_args.priority) and (args.IMPORTANCE_SCALE or '')
))
local ntf, check_task_forces = #task_forces, {}
if ntf>10 then -- too many task forces to check all, so check a selection instead
	local used = {}
	math.randomseed(os.time())
	for i = 1, 10 do
		local new
		repeat
			new = math.random(ntf)
		until not used[new]
		table.insert(check_task_forces, task_forces[new])
		used[new] = true
	end
	table.sort(check_task_forces, function (x, y) return tonumber(x) < tonumber(y) end)
	table.insert(notices, string.format(cfg_tp.check_assessment.too_many, table.concat(check_task_forces,', ')))
else
	check_task_forces = task_forces
end
for _, k in ipairs(check_task_forces) do
	local tf_prefix = 'TF_' .. k .. '_'
	table.insert(warnings, check_assessment_categories(
		project,
		args[tf_prefix..'ASSESSMENT_CAT'] or (args[tf_prefix..'NAME'] or '')..' articles',
		raw_args.class and yesno(args[tf_prefix..'QUALITY']) and args.QUALITY_CRITERIA~='custom',
		raw_args['tf '..k..' importance'] and (args.IMPORTANCE_SCALE or ''),
		tf_prefix,
		args[tf_prefix..'NAME']
	))
	check_other_category(args[tf_prefix .. 'MAIN_CAT'])
	for _, p in ipairs(taskforce_categories[k] or {}) do
		check_other_category(args[tf_prefix .. 'CAT_' .. p])
	end
end
---------------------------
-- Template categories ----
---------------------------
local pagetype_module = require('Module:Pagetype')._main
local pagetype = function(title)
	return pagetype_module{page = title.fullText}
end

if on_sandbox then
	add_tracking(cfg_tp.template_categories.sandbox, true)
elseif inactive_status then
	add_tracking(cfg_tp.template_categories.inactive)
else
	if raw_args.class then
		add_tracking(cfg_tp.template_categories.with_quality)
	else
		add_tracking(cfg_tp.template_categories.without_quality)
	end
	if (args.PROJECT_NAME=='WikiProject '..project or not args.PROJECT_NAME) and current_page.rootPageTitle.prefixedText~='Template:WikiProject ' .. project then
		add_tracking(cfg_tp.template_categories.non_standard)
	end

	-- List of categories to check
	local category_suffixes = {
		'Wikipedia-' .. project_name .. ' collaboration templates',
		'Wikipedia-' .. project_name .. ' collaboration',
		project_name .. ' templates',
		project_name,
	}

	-- Check each category
	local found = false
	for _, suffix in ipairs(category_suffixes) do
		local category_title = mw.title.new('Category:' .. suffix)
		if category_title.exists and pagetype(category_title) ~= 'redirect' then
			table.insert(tracking_cats, wikilink(category_title.fullText, '*'))
			found = true
			break
		end
	end

	-- If no valid category was found, add tracking with sort key 'E'
	if not found then
		add_tracking({sort_key = 'E'})
	end
end
---------------------------
-- Check parameters -------
---------------------------
local parameters = {}
local append_table = function(source)
	for _, v in ipairs(source) do
		table.insert(parameters, v)
	end
end
append_table(cfg_tp.parameters.parameters)
for _, k in ipairs(task_forces) do
	local task_force_parameters = {'tf '..k, 'tf '..k..' importance'}
	local prefix = string.format(cfg_tp.parameters.taskforce.prefix, k) 
	for _, p in ipairs(cfg_tp.parameters.taskforce.suffix) do
		table.insert(task_force_parameters, prefix .. p)
	end
	for _, p in ipairs(taskforce_categories[k] or {}) do
		table.insert(task_force_parameters, 'tf ' .. k .. ' cat ' .. p)
		table.insert(task_force_parameters, prefix .. 'CAT_' .. p)
	end
	append_table(task_force_parameters)
end
for _, k in ipairs(notes) do
	local note_parameters = {'note '..k}
	local prefix = string.format(cfg_tp.parameters.note.prefix, k)
	for _, p in ipairs(cfg_tp.parameters.note.suffix) do
		table.insert(note_parameters, prefix .. p)
	end
	append_table(note_parameters)
	check_other_category(args[prefix .. 'CAT'])
end
for _, set in ipairs(cfg_tp.parameters.extra) do
	local allow_parameters = false
	if set.trigger then
		table.insert(parameters, set.trigger)
		allow_parameters = raw_args[set.trigger] and true
	elseif set.triggers then
		append_table(set.triggers)
		for _, trig in ipairs(set.triggers) do
			if raw_args[trig] then
				allow_parameters = true
			end
		end
	end
	if allow_parameters then
		append_table(set.parameters)
		if set.categories then
			append_table(set.categories)
			for _, cat in ipairs(set.categories) do
				check_other_category(args[cat])
			end
		end
	end
end
parameters.preview = cfg_tp.parameters.preview
parameters.unknown = on_sandbox and '' or cfg_tp.parameters.category
local parameter_check = current_page.rootPageTitle.text=='WikiProject Military history' and ''
	or require('Module:Check for unknown parameters')._check(parameters, raw_args)
---------------------------
-- Other categories -------
---------------------------
if raw_args.attention then
	local attention_cat = args.ATTENTION_CAT or string.format(cfg.attention.default_cat, project)
	check_other_category(attention_cat)
end
if raw_args.infobox then
	local infobox_cat = args.INFOBOX_CAT or string.format(cfg.infobox.default_cat, project)
	check_other_category(infobox_cat)
end
if raw_args.auto then
	local auto_cat = args.AUTO_ASSESS_CAT or string.format(cfg.auto.default_cat, project)
	check_other_category(auto_cat)
end
check_other_category(args.MAIN_CAT)
if #missing_cats>0 then
	local list = mw.html.create('ul')
	for _, missing in ipairs(missing_cats) do
		list:tag('li')
			:wikitext(missing)
			:done()
	end
	list:done()
	table.insert(warnings, messageBox('ombox', {
		type = 'content',
		image = '[[File:' .. cfg_tp.check_other.icon .. '|50px]]',
		text = cfg_tp.check_other.text .. tostring(list)
	}))
	if red_other_cats_in_use then
		add_tracking(cfg_tp.check_other.tracking)
	end
end
---------------------------
-- Produce notices --------
---------------------------
local notice_html, notice_list
if #notices>=1 then
	notice_html = mw.html.create('ul')
	for _, notice in ipairs(notices) do
		notice_html:tag('li')
			:wikitext(notice)
			:done()
	end
	notice_list = ' ' .. cfg_tp.notice_text .. tostring(notice_html)
end
local info =  messageBox('ombox', {
	type = 'notice',
	image = '[[File:Icon tools.svg|50px]]',
	text = cfg_tp.info .. (notice_list or '')
})
---------------------------
-- Auto documentation -----
---------------------------
local td_params, auto_doc, parameter_name = {}, {}, {}
local basic, full, parameter_used, param = {}, {}, {}, {}
local class_module = require('Module:Class')
local template_code = mw.title.getCurrentTitle():getContent()
for _, parameter in pairs(parameters) do
	parameter_name[parameter] = string.match(
		template_code,
		'%|%s*' .. parameter:gsub('%-','%%%-') .. '%s*=%s*{{{([^|}]*)'
	)
end
local addTitle = function(title, level, section)
	local hl = 'h' .. tostring(level or 2)
	local _table = section or auto_doc
	table.insert(_table, tostring(mw.html.create(hl):wikitext(title)) .. '\n')
end
local showSection = function(list, title)
	if param[list] then
		if title then
			addTitle(title, 3)
		end
		local out = mw.html.create('ul')
		for _, v in ipairs(param[list]) do
			out:node(v)
		end
		table.insert(auto_doc, tostring(out:done()))
	end
end
local parameter_description = function(parameter, text, list, option, isBasic)
	local p_name = parameter_name[parameter]
	if p_name then
		if not parameter_used[p_name] then
			local syntax = '|' .. p_name .. '= '
			if isBasic then
				table.insert(basic, syntax)
			end
			table.insert(full, syntax)
			parameter_used[p_name] = true
		end
		local parsed_text = text
			:gsub('_PARAMETER_', parameter_format(p_name))
			:gsub('_PARAMETER%|?(%a*)_', parameter_format(p_name, '%1'))
			:gsub('_PAGETYPE_', 'article')
		local desc = '<b>' .. p_name .. '</b> – ' .. parsed_text
		local new_item = mw.html.create('li'):wikitext(desc)
		if param[list] then
			table.insert(param[list], new_item)
		else
			param[list] = {new_item}
		end
		if not option then option = {} end
		if not option.label then
			option.label = p_name
		end
		if not option.type then
			option.type = 'line' --use line type unless specified
		end
		--if not option.description then
		--	option.description = parsed_text --use text as description unless specified
		--end
		td_params[p_name] = option
	end
end
parameter_description('category', cfg.auto_doc.category, 'general', {
	description = 'Set to no to display the banner without any categories. For testing or demo purposes; should not be used in articles.',
	suggestedvalues = {'no'}
})
parameter_description('listas', cfg.auto_doc.listas:format(
	'John Smith', parameter_format('listas', 'Smith, John'), 'Smith', 'John',
	'The Matrix', parameter_format('listas', 'Matrix, The'), 'Matrix'
), 'general', {
	description = 'Define a sort key, mainly for biographical articles, so that the page is sorted under the surname rather than the first name.',
	example = 'Smith, John'
})
parameter_description('class', cfg.auto_doc.quality.see_below, 'general', {
	description = 'Assess the quality of the article. Please add this parameter to the banner shell instead.',
	example = 'C',
	deprecated = true,
	suggestedvalues = {'Stub', 'Start', 'C', 'B', 'A', 'List', 'GA', 'FA', 'FL'}
}, true)
parameter_description('importance', cfg.auto_doc.importance.see_below, 'general', {
	description = 'Assess the importance or priority of the article to the WikiProject',
	example = 'low',
	suggested = true,
	suggestedvalues = {'Low', 'Mid', 'High', 'Top', 'NA'}
}, true)
parameter_description('auto', cfg.auto_doc.auto:format(args.AUTO_ASSESS_CAT or cfg.auto.default_cat:format(project)), 'notes', {
	description = 'Indicates that the article has been automatically assessed by a bot or other tool.',
	example = 'yes'
})
parameter_description('attention', cfg.auto_doc.attention:format(args.ATTENTION_CAT or cfg.attention.default_cat:format(project)), 'notes', {
	description = 'Indicates that the article needs immediate attention from experienced editors.',
	example = 'yes'
})
parameter_description('infobox', cfg.auto_doc.infobox:format(args.INFOBOX_CAT or cfg.infobox.default_cat:format(project)), 'notes', {
	description = 'Indicates that the article needs an infobox.',
	example = 'yes'
})
if raw_args['image-needed'] then
	parameter_description('image-needed', cfg.auto_doc.image_needed.text:format(args['image-type'] or cfg.image_needed.default_type), 'notes')
	parameter_description('image-type', cfg.auto_doc.image_needed._type:format(cfg.image_needed.default_type), 'notes')
	parameter_description('image-details', cfg.auto_doc.image_needed.details, 'notes')
	local loc_cat = args.IM_LOCATION_CATEGORY
		and (' ' .. cfg.auto_doc.image_needed.default:format('location', args.IM_LOCATION_CATEGORY))
		or ''
	parameter_description('image-location', cfg.auto_doc.image_needed.location:format(args['image-type'] or 'photograph') .. loc_cat, 'notes')
	local topic_cat = args.IM_TOPIC_CATEGORY
		and (' ' .. cfg.auto_doc.image_needed.default:format('topic', args.IM_TOPIC_CATEGORY))
		or ''
	parameter_description('image-topic', cfg.auto_doc.image_needed.topic:format(args['image-type'] or 'photograph') .. topic_cat, 'notes')
end
for _, k in ipairs(notes) do
	local text = cfg.auto_doc.note.yes_no
	if args['NOTE_'..k..'_TEXT'] then
		text = text ..  cfg.auto_doc.note.text:format(args['NOTE_'..k..'_TEXT'])
	end
	if args['NOTE_'..k..'_CAT'] then
		text = text ..  ' ' .. cfg.auto_doc.note.category:format(args['NOTE_'..k..'_CAT'])
	end
	parameter_description('note '..k, text, 'notes', {
		description = 'Triggers a custom note in the banner.',
		example = 'yes',
		suggestedvalues = {'yes', 'no'}
	})
end
for _, k in ipairs(task_forces) do
	local tf_imp_name = raw_args['tf ' .. k .. ' importance'] and parameter_name['tf ' .. k .. ' importance']
	local prefix = 'TF_' .. k .. '_'
	local text = cfg.auto_doc.task_force.yes_no:format(
		args[prefix..'LINK'] or '',
		args[prefix..'NAME'] or ''
	)
	if args[prefix..'MAIN_CAT'] then
		text = text .. ' ' .. cfg.auto_doc.task_force.category:format(args[prefix..'MAIN_CAT'])
	end
	if yesno(args[prefix..'QUALITY']) and args[prefix..'ASSESSMENT_CAT'] then
		text = text .. ' ' .. cfg.auto_doc.task_force.class:format(
			args[prefix..'ASSESSMENT_CAT'],
			'class'
		)
	end
	if tf_imp_name and args[prefix..'ASSESSMENT_CAT'] then
		text = text .. ' ' .. cfg.auto_doc.task_force.importance:format(
			parameter_format(tf_imp_name),
			args[prefix..'ASSESSMENT_CAT']
		)
	end
	parameter_description('tf '..k, text, 'task_forces', {
		description = 'Triggers ' .. (args[prefix..'NAME'] or 'a custom task force') .. ' in the banner.',
		example = 'yes',
		suggestedvalues = {'yes', 'no'}
	})
end
---------------------------
-- Quality documentation --
---------------------------
local quality
local assessment_cat = args.ASSESSMENT_CAT or project .. ' articles'
if raw_args.class then
	quality = {}
	local text
	if args.QUALITY_CRITERIA=='custom' and assessment_link then
		local scale = cfg.quality.project_scale:format(wikilink(assessment_link..'#'..lang:ucfirst(cfg.quality.name), cfg.quality.name))
		text = cfg.auto_doc.quality.custom:format(scale)
	else
		text = cfg.auto_doc.quality.default:format(cfg.quality.default_scale)
	end
	table.insert(quality, text)
	local exists = {}
	addTitle(cfg.auto_doc.quality.class_parameter, 3, quality)
	local add_row = function(class, input, rowspan)
		local cat = class..'-Class '..assessment_cat
		return mw.html.create('tr')
			:tag('th')
				:wikitext(input or class)
				:done()
			:tag('td')
				:attr('rowspan', rowspan or 1)
				:css('text-align', 'center') --TODO: add to css page
				:wikitext(class_module.icon{class})
				:done()
			:node(class_module._class{class, category=assessment_cat, image='no', rowspan=rowspan or 1})
			:tag('td')
				:attr('rowspan', rowspan or 1)
				:wikitext(wikilink(':Category:'..cat))
				:done()
			:tag('td')
				:attr('rowspan', rowspan or 1)
				:css('text-align', 'right') --TODO: add to css page
				:wikitext(lang:formatNum(mw.site.stats.pagesInCategory(cat)))
			:done()
	end
	local class_table = mw.html.create('table')
		:addClass('wikitable')
		:tag('tr')
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table._input)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.icon)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.class)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.category)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.population)
				:done()
		:done()
	for _, class in ipairs{'FA', 'A', 'GA'} do
		class_table:node(add_row(class))
	end
	class_table:node(add_row('B'))
	class_table:node(add_row('C'))
	for _, class in ipairs{'Start', 'Stub', 'FL', 'List', 'NA'} do
		class_table:node(add_row(class))
	end
	for _, class in ipairs(cfg.auto_doc.quality.extended) do
		local cat = mw.title.new('Category:' .. class .. '-Class ' .. assessment_cat)
		if cat.exists and #cat:getContent()>1 then
			exists[class] = true
			class_table:node(add_row(class))
		end
	end
	table.insert(quality, tostring(class_table))
	addTitle(cfg.auto_doc.quality.redirect, 3, quality)
	local redirects = cfg.auto_doc.quality.redirects:format(
		exists.Redirect and 'Redirect' or 'NA',
		wikilink(':Category:' .. (exists.Redirect and 'Redirect' or 'NA') .. '-Class ' ..assessment_cat)
	)
	local dabs = cfg.auto_doc.quality.dabs:format(
		exists.Disambig and 'Disambig' or 'NA',
		wikilink(':Category:' .. (exists.Disambig and 'Disambig' or 'NA') .. '-Class ' ..assessment_cat)
	)
	table.insert(quality, cfg.auto_doc.quality.not_defined)
	local list = mw.html.create('ul')
		:tag('li')
			:wikitext(redirects)
			:done()
		:tag('li')
			:wikitext(dabs)
			:done()
	:done()
	table.insert(quality, tostring(list))
	addTitle(cfg.auto_doc.quality.namespace, 3, quality)
	table.insert(quality, cfg.auto_doc.quality.deduced)
	local first_col = function(text)
		return mw.html.create('tr'):tag('th')
			:wikitext(text)
			:allDone()
	end
	local namespace_table = mw.html.create('table')
		:addClass('wikitable')
		:tag('tr')
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.namespace)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.icon)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.class)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.category)
				:done()
			:tag('th')
				:wikitext(cfg.auto_doc.quality._table.population)
				:done()
		:done()
	local na_rowspan = 3
		+ (exists.File and 0 or 2)
		+ (exists.Category and 0 or 1)
		+ (exists.Portal and 0 or 1)
		+ (exists.Template and 0 or 2)
		+ (exists.Project and 0 or 1)
		+ (exists.Draft and 0 or 1)
	namespace_table:node(add_row('NA', 'User talk', na_rowspan))
	:node(not exists.File and first_col('File talk'))
	:node(not exists.File and first_col('TimedText talk'))
	:node(not exists.Category and first_col('Category talk'))
	:node(not exists.Portal and first_col('Portal talk'))
	:node(not exists.Template and first_col('Template talk'))
	:node(not exists.Template and first_col('Module talk'))
	:node(not exists.Project and first_col('Project talk'))
	:node(not exists.Draft and first_col('Draft talk'))
	:node(first_col('Help talk'))
	:node(first_col('MediaWiki talk'))
	:node(exists.File and add_row('File', 'File talk', 2))
	:node(exists.File and first_col('TimedText talk'))
	:node(exists.Category and add_row('Category', 'Category talk'))
	:node(exists.Portal and add_row('Portal', 'Portal talk'))
	:node(exists.Template and add_row('Template', 'Template talk', 2))
	:node(exists.Template and first_col('Module talk'))
	:node(exists.Project and add_row('Project', 'Project talk'))
	:node(exists.Draft and add_row('Draft', 'Draft talk'))
	table.insert(quality, tostring(namespace_table))
	table.insert(quality, cfg.auto_doc.quality.other:format(assessment_cat))
end
---------------------------
-- Importance doc ---------
---------------------------
local importance_doc
if raw_args.importance and args.IMPORTANCE_SCALE~='inline' and args.IMPORTANCE_SCALE~='subpage' then
	importance_doc = {}
	local imp_doc = cfg.auto_doc.importance
	addTitle(imp_doc.heading, 2, importance_doc)
	table.insert(importance_doc, imp_doc.standard)
	local add_row = function(importance)
		local cat = importance..'-' .. 'importance ' .. assessment_cat
		return mw.html.create('tr')
			:tag('th')
				:wikitext(importance)
				:done()
			:node(frame:expandTemplate{title='Template:Importance', args={importance, category=assessment_cat}})
			:tag('td')
				:wikitext(wikilink(':Category:'..cat))
				:done()
			:tag('td')
				:css('text-align', 'right') --TODO: add to css page
				:wikitext(lang:formatNum(mw.site.stats.pagesInCategory(cat)))
				:done()
	end
	local imp_table = mw.html.create('table')
		:addClass('wikitable')
		:tag('tr')
			:tag('th')
				:wikitext(imp_doc._table._input)
				:done()
			:tag('th')
				:wikitext(imp_doc._table.importance)
				:done()
			:tag('th')
				:wikitext(imp_doc._table.category)
				:done()
			:tag('th')
				:wikitext(imp_doc._table.population)
				:done()
		:done()
	for _, importance in ipairs(imp_doc.classes) do
		imp_table:node(add_row(importance))
	end
	table.insert(importance_doc, tostring(imp_table))
end
---------------------------
-- Build documentation ----
---------------------------
table.insert(auto_doc, string.format(cfg.auto_doc.lead, wikilink(project_link, project_name)))

if args.MAIN_CAT then
	table.insert(auto_doc, 'All articles are categorised into [[:Category:' .. args.MAIN_CAT .. ']].')
end
addTitle('Basic usage', 3)
table.insert(auto_doc, cfg.auto_doc.usage_basic
	.. frame:extensionTag{
		name = 'syntaxhighlight',
		content = '{{' .. banner_name.text .. ' ' .. table.concat(basic) .. '}}',
		args = {lang = 'wikitext'}
	}
)
addTitle('Full usage', 3)
table.insert(auto_doc, cfg.auto_doc.usage_full
	.. frame:extensionTag{
		name = 'syntaxhighlight',
		content = '{{' .. banner_name.text .. ' ' .. table.concat(full) .. '}}',
		args = {lang = 'wikitext'}
	}
)
addTitle('Parameters')
showSection('general')
showSection('notes', 'Notes and alerts')
showSection('task_forces', 'Task forces')
if quality then
	addTitle(cfg.auto_doc.quality.heading)
	table.insert(auto_doc, table.concat(quality))
end
if importance_doc then
	table.insert(auto_doc, table.concat(importance_doc))
end
---------------------------
-- Template data ----------
---------------------------
local template_data = {
	description = 'This template identifies the article as being within scope of ' .. project_name .. '.',
	format = 'inline',
	params = td_params
}
if args.DOC=='auto' then
	addTitle('TemplateData', 3)
	table.insert(
		auto_doc,
		frame:extensionTag{
			name = 'templatedata',
			content = mw.text.jsonEncode(template_data)
		}
	)
end

local doc = ''
if args.DOC=='auto' or args.DOC=='auto+custom' then
	local not_documented = {'INHERIT_IMPORTANCE', 'priority', 'IMPN', 'QII_FORMAT', 'collaboration-candidate', 'collaboration-current', 'collaboration-past', 'a class', 'peer review', 'old peer review'}
	local doc_missing = false
	for _, p in ipairs(not_documented) do
		if raw_args[p] then
			doc_missing = p
		end
	end
	if doc_missing then
		add_tracking{
			category = 'WikiProject banner templates using undocumented features',
			sort_key = doc_missing
		}
	end
	doc = require('Module:Documentation').main{content = table.concat(auto_doc)}
end
if args.DOC=='custom' or args.DOC=='auto+custom' then
	doc = doc .. require('Module:Documentation').main()
end

return parameter_check .. demo_banner .. info .. (inactive_status and '' or table.concat(warnings)) .. table.concat(tracking_cats) .. doc
end

return p
"https://si.wikipedia.org/w/index.php?title=Module:WikiProject_banner/templatepage/sandbox&oldid=704237" වෙතින් සම්ප්‍රවේශනය කෙරිණි